Creating a World SID

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Article ID: 111543 - View products that this article applies to.
This article was previously published under Q111543
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The sample code below demonstrates how to create a World Security Identifier (SID). The World SID (S-1-1-0) is a group that includes all users. To determine if a SID (perhaps in an Access Control Entry) is the World SID, you must first create a World SID to compare it to. Once you have created a World SID, you can use the EqualSid() API (application programming interface) to determine equality.

Sample Code

PSID psidWorldSid;

psidWorldSid = (PSID)LocalAlloc(LPTR,GetSidLengthRequired( 1 ));

InitializeSid( psidWorldSid, &siaWorldSidAuthority, 1);
*(GetSidSubAuthority( psidWorldSid, 0)) = SECURITY_WORLD_RID;
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Article ID: 111543 - Last Review: February 28, 2014 - Revision: 3.1
  • Microsoft Win32 Application Programming Interface, when used with:
    • Microsoft Windows NT Advanced Server 3.1
    • Microsoft Windows NT 4.0
    • Microsoft Windows 2000 Standard Edition
    • the operating system: Microsoft Windows XP
kbnosurvey kbarchive kbprogramming kbkernbase kbsecurity KB111543

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